104 CANNONBURY AVENUE Harrow HA5 1TT
CERTIFICATE OF LAWFUL DEVELOPMENT (PROPOSED):Alterations and extension to roof to form rear gable; alterations and extension to raise roof height to create first floor level; rear dormer with Juliette balcony; three rooflights in side roofslope
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Progress
Application details
- Reference
- P/2112/23
- Local authority
- Harrow
- Postcode
- HA5 1TT
- Ward
- Pinner South
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 21 Jul 2023
- Validated
- 21 Jul 2023
- Comments close
- 11 Jul 2023
- Target decision
- 5 Sept 2023
- Decided
- 5 Sept 2023
Estimated project value
£35k–£94k
Typical UK cost for this job type, at outer London rates (2026). Estimated from the proposal description — planning applications do not state build cost. Source: Checkatrade 2026 loft conversion cost guide.
Recently sold nearby
New owners, recently moved in. First work on a house usually follows within months of completing. 6 recent sales are listed below.
- 88 CANNONBURY AVENUE, PINNER, HA5 1TTSemi-detached · £725,0002 months ago30 Jul 2026
- 126 CANNONBURY AVENUE, PINNER, HA5 1TTSemi-detached · £715,00011 months ago17 Nov 2025
- 104 CANNONBURY AVENUE, PINNER, HA5 1TTSemi-detached · £625,00011 months ago14 Nov 2025
- 106 CANNONBURY AVENUE, PINNER, HA5 1TTDetached · £450,00016 months ago24 Jun 2025
- 104 CANNONBURY AVENUE, PINNER, HA5 1TTSemi-detached · £602,00023 months ago28 Nov 2024
- 100 CANNONBURY AVENUE, PINNER, HA5 1TTTerraced · £690,00023 months ago28 Nov 2024
- 114 CANNONBURY AVENUE, PINNER, HA5 1TTSemi-detached · £850,0003 years ago22 Aug 2023
- 112 CANNONBURY AVENUE, PINNER, HA5 1TTDetached · £580,0003 years ago19 May 2023
Homes here go for about £657,500 — the median of the last 8 market sales in HA5 1TT, £450,000 to £850,000.
Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0. Sales are matched by postcode, not by property, so a sale listed here may be a neighbouring address. England and Wales only.
Planning constraints
No designations recorded at this location. This is not a formal search — always confirm with the local authority before relying on it.
Designations from planning.data.gov.uk, Open Government Licence v3.0. Indicative only — not a formal local authority search.
Recorded changes
- 1 Oct 2026: The proposal was amended
Nearby applications
- 104 Cannonbury Avenue Harrow HA5 1TTPendingNext door
- 102 Harrow HA5 1TTPendingNext door
- Cannonbury Avenue Harrow HA5 1TTPermittedNext door
- 109 Cannonbury Avenue Harrow HA5 1TRPermitted77 yd
- 109 Cannonbury Avenue Harrow HA5 1TRPermitted77 yd
- 86 CANNONBURY AVENUE Harrow HA5 1TTPermitted79 yd